BS 5050:1974

This standard BS 5050:1974 Methods of test for cryolite is classified in these ICS categories:

• 73.060.40 Aluminium ores
• 71.100.10 Materials for aluminium production
• 71.060.50 Salts

This British Standard describes methods of test for natural and artificial cryolite having a NaF : AlF₃ ratio of between 3 and 1.7.

NOTE The titles of the British Standards and ISO publications referred to in this standard are listed on the inside back cover.

Preparation and storage of test samples, determination of silica, fluorine, iron and sodium contents and of aluminium content by gravimetric and atomic absorption methods.